Learning something about Bromoethane

Bromoethane is a colorless liquid with a vapor heavier than air. It reacts vigorously with oxidizing agents including air and strong alkalis. It is a chemical compound of the haloalkanes group. It is abbreviated by chemists as EtBr. This volatile compound has an ether-like odour. It is soluble in Dichloromethane and Methanol. We can also call it ethyl bromide, Bromoethane or Bromoethane Ethyl bromide.The Molecular Formula is C2H5Br, Molecular Weight is 108.97, and CAS NO. is 74-96-4.

It is normally used in sealed vessels. Its main use is an ethylating agent in chemical synthesis. In organic synthesis, Bromoethane is the synthetic equivalent of the ethyl carbocation (Et+) synthon. In reality, such a cation is not actually formed. For example, carboxylates salts are converted to ethyl esters, carbanions to ethylated derivatives, thiourea into ethylisothiouronium salts, and amines into ethylamines.

Halocarbons in general are potentially dangerous alkylating agents. Bromides are better alkylating agents than chlorides, thus exposure to Bromoethane should be minimized. Bromoethane is classified by the State of California as carcinogenic and a reproductive toxin.

So how to treat the accidental release of Bromoethane?

Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid breathing vapors, mist or gas. Ensure adequate ventilation.

Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapours accumulating to form explosive concentrations. Vapours can accumulate in low areas.

Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let Bromoethane enter drains.

Methods and materials for containment and cleaning up
Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations (see section 13).

What should we be careful when we handing or storage Bromoethane?

Precautions for safe handling
Avoid contact with skin and eyes. Avoid inhalation of vapour or mist. Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic charge.

Conditions for safe storage, including any incompatibilities
Store Bromoethane in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Bromoethane is sensitive to light . Refrigerate before opening. Over time, pressure may increase causing containers to burst Handle and open container with care.

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